Translation guide
The English word 'mechanical' has several distinct meanings. This guide helps learners choose the right Japanese expression depending on whether they mean 'related to machines', 'automatic/unthinking', or 'technical/physical'. Direct translation is often unnatural; context is key.
Describing something that involves, is part of, or is operated by a machine, or relating to the physical forces of mechanics.
The most common and neutral way to say 'mechanical' when referring to parts, devices, or systems that are machine-based. It literally means 'of a machine'.
This watch is made of mechanical parts.
It's due to a mechanical failure.
A more technical or formal adjective meaning 'mechanical' in the sense of relating to mechanics or machines. Often used in compound terms like 'mechanical engineering'.
He solved the mechanical problem.
A loanword from English, used in specific contexts like 'mechanical keyboard' or product names. Not as common as native terms.
I like mechanical keyboards.
Describing an action or response that is performed in a routine, unthinking manner, like a machine.
This is the primary translation for 'mechanical' in the sense of automatic, unthinking, or lacking emotion. It can describe actions, responses, or even a person's demeanor.
His reply was mechanical.
Literally 'without thinking', this phrase captures the unthinking aspect of 'mechanical' when describing how someone does something.
He continued the work mechanically.
Means 'automatically', and can be used when the mechanical action is a habitual or reflexive response.
She said 'yes' mechanically.
Pertaining to the branch of physics dealing with motion and forces.
In English, 'mechanical' can describe a person who is stiff or unemotional. In Japanese, using 機械的 for a person can sound overly critical or unnatural. Instead, describe the specific behavior, e.g., 無表情 (expressionless) or 冷たい (cold).
He spoke in a mechanical way (expressionless).
Mechanical work is boring.
機械的振動を測定する。
Measure mechanical vibrations.